US2813645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth moving apparatus or the like
Assignee: Individual
•
Filing: 1957-01-14
•
Granted: 1957-11-19
•
Expires: 1977-01-14
Abstract
No abstract record available.
Inventors
- 👤 John S Pilch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:15
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/32; E02F3/36; E02F3/42; E02F3/425; E02F9/00; E02F9/20; E02F9/22; E02F9/2264; E02F9/2275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2191569A
Cited
US2303852A
Cited
US2418251A
Cited
US2678741A
Cited
US2718312A
Cited
FR1070006A
Cited
FR1072530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |